Flash Memory

What is flash memory?
Flash memory is available in several forms such as a USB flash drive, Microchip, MicroSDHC, a standard chip or SSD card and is used for fast information storage. Flash memory is a type of memory storage that retains data regardless of a power source. This type of memory is also a great solution for transferring data between computers and digital devices.

How does flash memory work?
Flash memory is also known as an EEPROM chip, this acronym stands for Electronically Erasable Programmable Read Only Memory. Flash works by retaining small parts of electricity between its transistors, allowing information to be stored with or without power.

What is flash memory used for?
It’s essentially a form of portable memory, it's also considered to be in a solid state because it has no moving parts, everything about flash is electronic and not mechanical. This is what makes it perfect choice for applications such as digital cameras and video game consoles. Flash is non-volatile, meaning it can retrieve stored information even after power has stopped working through it, mobile devices and controllers tend to be flash based for this very reason, alongside usually having a great storage capacity, high speed and high performance.

How much space is in flash memory?
RS Components offers a large variety of flash memory cheap, ranging from Bit, Kbit, MB and GB. Please refer to our selection on the home page for all flash to find the correct storage amount you need.
What is the difference between NOR flash and NAND flash?

NOR
• NOR flash provides a faster speed as possessing random access capabilities, a good choice for mobile devices as it’s suitable to store large quantities of code.
• The erase and write function is slower than NAND
• Hosts a larger memory cell size than NAND
• Limiting scaling capabilities make bit density achievable

NAND
• Provides fast rewritable and erase capabilities but is a little slower than NOR within the read speed.
• NAND flash is a popular choice for those needing flash drive for digital video, data storage and music. This is because of NAND's high speed and high capacity alongside being a flash memory that is cheap as the cost per bit is generally lower.
• Quickly re-write data, over and over again
• Stores a large quantity of data and commonly used for flash drives, smart phones, digital devices, USB and cameras.

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Description Price Memory Size Interface Type Package Type Pin Count Organisation Mounting Type Cell Type Minimum Operating Supply Voltage Maximum Operating Supply Voltage Block Organisation Length Height Width Dimensions
RS Stock No. 146-0157
Mfr. Part No.SST39VF040-70-4I-NHE
BrandMicrochip
SGD2.303
Each (In a Tube of 30)
units
4Mbit Parallel PLCC 32 512K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical 11.51mm 2.84mm 14.05mm 11.51 x 14.05 x 2.84mm
RS Stock No. 723-8785
Mfr. Part No.SST39VF040-70-4I-NHE
BrandMicrochip
SGD2.585
Each (In a Pack of 2)
units
4Mbit Parallel PLCC 32 512K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical 11.51mm 2.84mm 14.05mm 11.51 x 14.05 x 2.84mm
RS Stock No. 171-1481
Mfr. Part No.S29GL128P90TFIR10
SGD5.73
Each (In a Tray of 91)
units
128Mbit CFI, Parallel TSOP 56 8M x 16 bit Surface Mount NOR 3 V 3.6 V - 18.5mm 1.05mm 14.1mm 18.5 x 14.1 x 1.05mm
RS Stock No. 723-8772
Mfr. Part No.SST39VF040-70-4C-NHE
BrandMicrochip
SGD2.345
Each (In a Pack of 2)
units
4Mbit Parallel PLCC 32 512K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical 11.51mm 2.84mm 14.05mm 11.51 x 14.05 x 2.84mm
RS Stock No. 125-5669
Mfr. Part No.S29GL128P90TFIR10
SGD6.50
Each
units
128Mbit CFI, Parallel TSOP 56 8M x 16 bit Surface Mount NOR 3 V 3.6 V - 18.5mm 1.05mm 14.1mm 18.5 x 14.1 x 1.05mm
RS Stock No. 912-6722
Mfr. Part No.SST39VF040-70-4C-NHE
BrandMicrochip
SGD2.303
Each (In a Tube of 30)
units
4Mbit Parallel PLCC 32 512K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical 11.51mm 2.84mm 14.05mm 11.51 x 14.05 x 2.84mm
RS Stock No. 822-8467
Mfr. Part No.AT45DB081E-SSHN-B
SGD2.296
Each (In a Pack of 5)
units
8650752bit SPI SOIC 8 4096 pages x 256 bytes Surface Mount - 1.7 V 3.6 V - 5.05mm 1.5mm 3.99mm 5.05 x 3.99 x 1.5mm
RS Stock No. 822-8473
Mfr. Part No.AT25SF041-SSHD-B
SGD0.428
Each (In a Pack of 10)
units
4Mbit SPI SOIC 8 512K x 8 Surface Mount - 2.5 V 3.6 V - 5.05mm 1.5mm 3.99mm 5.05 x 3.99 x 1.5mm
RS Stock No. 177-5287
Mfr. Part No.S29GL128P90FFIR20
SGD5.53
Each (In a Tray of 180)
units
128Mbit CFI FPBGA 64 128M x 1 bit Surface Mount - 3 V 3.6 V - 13mm 1mm 11mm 13 x 11 x 1mm
RS Stock No. 124-2664
Mfr. Part No.S29GL128P90FFIR20
SGD6.95
Each (In a Pack of 2)
units
128Mbit CFI FPBGA 64 128M x 1 bit Surface Mount - 3 V 3.6 V - 13mm 1mm 11mm 13 x 11 x 1mm
RS Stock No. 165-6782
Mfr. Part No.AT45DB641E-MWHN-Y
SGD5.47
Each (In a Tray of 338)
units
69206016bit SPI VDFN 8 32768 pages x 256 bytes Surface Mount - 1.65 V 3.6 V - 8.1mm 0.95mm 6.1mm 8.1 x 6.1 x 0.95mm
RS Stock No. 177-5299
Mfr. Part No.S29GL064N90BFI040
SGD5.26
Each (In a Tray of 338)
units
64Mbit CFI FPBGA 48 4M x 16 bit, 8M x 8 bit Surface Mount - 2.7 V 3.6 V - 8.15mm 0.76mm 6.15mm 8.15 x 6.15 x 0.76mm
RS Stock No. 171-1480
Mfr. Part No.S29GL128P11TFI020
SGD6.18
Each (In a Tray of 91)
units
128Mbit CFI, Parallel TSOP 56 8M x 16 bit Surface Mount NOR 2.7 V 3.6 V - 18.5mm 1.05mm 14.1mm 18.5 x 14.1 x 1.05mm
RS Stock No. 822-8470
Mfr. Part No.AT45DB641E-MWHN-Y
SGD6.89
Each (In a Pack of 2)
units
69206016bit SPI VDFN 8 32768 pages x 256 bytes Surface Mount - 1.65 V 3.6 V - 8.1mm 0.95mm 6.1mm 8.1 x 6.1 x 0.95mm
RS Stock No. 125-5537
Mfr. Part No.S29GL128P11TFI020
SGD6.95
Each (In a Pack of 2)
units
128Mbit CFI, Parallel TSOP 56 8M x 16 bit Surface Mount NOR 2.7 V 3.6 V - 18.5mm 1.05mm 14.1mm 18.5 x 14.1 x 1.05mm
RS Stock No. 168-7915
Mfr. Part No.AT25SF041-SSHD-B
SGD0.438
Each (In a Tube of 98)
units
4Mbit SPI SOIC 8 512K x 8 Surface Mount - 2.5 V 3.6 V - 5.05mm 1.5mm 3.99mm 5.05 x 3.99 x 1.5mm
RS Stock No. 124-2661
Mfr. Part No.S29GL064N90BFI040
SGD6.65
Each (In a Pack of 5)
units
64Mbit CFI FPBGA 48 4M x 16 bit, 8M x 8 bit Surface Mount - 2.7 V 3.6 V - 8.15mm 0.76mm 6.15mm 8.15 x 6.15 x 0.76mm
RS Stock No. 165-6714
Mfr. Part No.AT45DB081E-SSHN-B
SGD1.99
Each (In a Tube of 98)
units
8650752bit SPI SOIC 8 4096 pages x 256 bytes Surface Mount - 1.7 V 3.6 V - 5.05mm 1.5mm 3.99mm 5.05 x 3.99 x 1.5mm
RS Stock No. 879-3268
Mfr. Part No.SST39SF040-55-4I-NHE
BrandMicrochip
SGD2.754
Each (In a Pack of 5)
units
4Mbit Parallel PLCC 32 512K x 8 bit Surface Mount Split Gate 4.5 V 5.5 V - 11.43mm 2.79mm 13.97mm 11.43 x 13.97 x 2.79mm
RS Stock No. 144-5797
Mfr. Part No.SST39VF040-70-4C-WHE
BrandMicrochip
SGD1.928
Each (In a Tray of 208)
units
4Mbit Parallel TSOP 32 512K x 8 bit Surface Mount Split Gate 2.7 V 3.6 V Symmetrical 12.5mm 1.05mm 8.1mm 12.5 x 8.1 x 1.05mm
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